<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>
  <script>

    
    function setup1 () {
      return { aa: 11 }
    }

    //  async 函数的返回值是 Promise 对象
    async function setup () {
      return { aa: 11 }
    }

    const result = setup()   
    console.log(result); // Promise 对象

  </script>
</body>
</html>